arm64: dts: qcom: add 'chassis-type' property

A new 'chassis-type' root node property has recently been approved for
the device-tree specification, in order to provide a simple way for
userspace to detect the device form factor and adjust their behavior
accordingly.

This patch fills in this property for end-user devices (such as laptops,
smartphones and tablets) based on Qualcomm ARM64 processors.

Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net> # msm8916
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211016102025.23346-4-arnaud.ferraris@collabora.com

arm64: dts: qcom: sdm630-xperia: Retire sdm630-sony-xperia-ganges.dtsi

After further consideration, it is not worth to keep another
separate DTSI, as the differences between Nile and Ganges are
very minimal. Instead, let's just address the minimal differences
between Kirin and Mermaid.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210728222542.54269-34-konrad.dybcio@somainline.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: Add support for Sony Xperia XA2/Plus/Ultra (Nile platform)

Add device tree support for the Sony Xperia XA2, XA2 Plus and
XA2 Ultra smartphones. They are all based on the Sony Nile
platform (sdm630) and share a lot of common code. The
differences are really minor, so a Nile-common DTSI
has been created to reduce clutter.

XA2 - Pioneer
XA2 Plus - Voyager
XA2 Ultra - Discovery

The boards currently support:
* Screen console
* SDHCI
* I2C
* pstore log dump
* GPIO keys
* PSCI idle states

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Tested-by: Łukasz Patron <priv.luk@gmail.com>
Link: https://lore.kernel.org/r/20200622192558.152828-6-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>